Author: Admin

Link: How To Recover A CryptoLocker Infected Hard Drive

CryptoLocker is a ransomware which is just simple and devastating. Up until now, computers effected by CryptoLocker were unusable unless you paid the demanded monetary payment.

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Up until now, there was no way to recover the data encrypted by CryptoLocker.

Thanks to the researchers at Fox-IT and FireEye, though, who managed to recover the private encryption keys and Kyrus Technologies for building the actual decryption engine. Combining the efforts, these security firms launched a website which can be used by the victims of CryptoLocker to decrypt their encrypted files free of charge.

Full article here:
How To Recover A CryptoLocker Infected Hard Drive (Make Tech Easier)

Link: Configure “No Password SSH Keys Authentication” with PuTTY on Linux Servers

SSH (Secure SHELL) is one of the most used network protocol to connect and login to remote Linux servers, due to its increased security provided by its cryptographic secure channel established for data flow over insecure networks and its Public Key Authentication.

While using passwords to login to remote servers can provide a less secure to system security, because a password can be brute-force cracked, SSH Public Key Authentication provides the best secure method to perform distance logins, because it’s almost impossible to decipher the key and the private key guarantees that the sender it’s always who it claims to be.

This article will show you how you can generate and use SSH Keys from Windows based platforms using Putty client to automatically perform remote logins on Linux servers without the need to enter passwords.

Full article here:
Configure “No Password SSH Keys Authentication” with PuTTY on Linux Servers (Tecmint)

Link: How to Install and Configure Cygwin in Windows Environment

If you are a Linux or Unix user, I am sure you will miss the terminal (and all the wonderful things you can do with command lines) in a Windows environment. Most of the time you won’t need to use the command prompt in Windows, and its user-interface is not as friendly either. However, if you have the need to use a terminal, Cygwin is the best tool for you. Let us see how to install and configure Cygwin in the Windows environment.

Full article here:
How to Install and Configure Cygwin in Windows Environment (Make Tech Easier)

Link: Perform Multiple Operations in Linux with the ‘xargs’ Command

Xargs is a useful command that acts as a bridge between two commands, reading output of one and executing the other with the items read. The command is most commonly used in scenarios when a user is searching for a pattern, removing and renaming files, and more.

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While the xargs command can be used in various command line operations, it comes in really handy when used with the find command. In this article, we will discuss some useful examples to understand how xargs and find can be used together.

Full article here:
Perform Multiple Operations in Linux with the ‘xargs’ Command (Make Tech Easier)

Link: How to Boot Linux ISO Images Directly From Your Hard Drive

Linux’s GRUB2 boot loader can boot Linux ISO files directly from your hard drive. Boot Linux live CDs or even install Linux on another hard drive partition without burning it to disc or booting from a USB drive.

We performed this process on Ubuntu 14.04 — Ubuntu and Ubuntu-based Linux distributions have good support for this. Other Linux distributions should work similarly.

Full article here:
How to Boot Linux ISO Images Directly From Your Hard Drive (How-To Geek)

Link: Three Ways to Find Your System Specifications

It can often be valuable to know the finer details about your computer, whether discussing with friends, finding upgrades for your existing hardware, or (in the worst case scenario) discussing it with tech support after something has gone catastrophically wrong. Few people know how to find their system specifications, and even fewer would be content with opening their computer to find parts that may not have obvious branding.

There are at least three popular tools available online for finding your computer’s specifications. No old-school tools are needed, nothing has to be opened; it couldn’t be much simpler, in fact.

Full article here:
Three Ways to Find Your System Specifications (Make Tech Easier)

Link: Shell Script to Check Linux System Health

This article we are introducing a shell script to perform linux system health check. This script collects system information and status like hostname, kernel version, uptime, cpu / memory / disk usage. Script uses hostname, uptime, who, mpstat, lscpu, ps, top, df, free, bc commands to get system information and cut, grep, awk and sed for text processing. The output of the script is a text file which will be generated in the current directory. A variable is set to provide email address to which script can send report file. Apart from system status, the script will check a predefined threshold for cpu load and filesystem size.

Full article here:
Shell Script to Check Linux System Health (LinOxide)

Link: Short introduction into grub internals

There are lot of grub questions lately and I was just about to answer one but somehow my answer turned out a bit long so I decided the change it into a more general post about grub and bootloaders. ….. I am going into a lot of details here about how a grub installation works. Please don’t take this a suggestion you should do it like this. Your distro will set this all up for you. I write about it because I think it helps to understand how grub works and because it allows repairing grub if it was damaged.

Full article here:
Short introduction into grub internals (reddit – linux4noobs)

Link: Edit your crontab file with crontab -e

Linux crontab FAQ: How do I edit my Unix/Linux crontab file?

I was working with an experienced Linux sysadmin a few days ago, and when we needed to make a change to the root user crontab file, I was really surprised to watch him cd to the root user’s cron folder, make changes to the file, then do a kill -HUP on the crontab process.

Thinking he knew something I didn’t know, I asked him why he did all of that work instead of just entering this:

crontab -e

Full article here:
Edit your crontab file with crontab -e (Alvin Alexander)